The bigger diesel engine v16 cylinders C175 of Caterpillar is awezome.As efficient as it is powerful, this compact package will make a huge impact on your rig's performance. The proven success of the 3500 series engines forms the foundation of the Cat C175 diesel engine. Low owning and operating costs, high endurance components, and outstanding serviceability add to the innovations. 1500 - 3500 HP